Efficacy of Pilot Scale Batac Jig on LVC Coal Utilization for Coke Making

Andavarapu, Mohana Rao; Vidyadhar, A; Prasad, Ranjit; Sahoo, Monica

doi:10.1007/s12666-023-02875-8

Cited by 2 publications

(2 citation statements)

References 12 publications

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“…Gravity separation is one of the main methods used for coal separation. It includes heavy medium [ 2 , 3 ], water medium [ 4 , 5 ], and air medium [ 6 , 7 ] separation. The water-medium separation methods include jigging separation [ 8 ], coarse slime interference bed separation (TBS) [ 9 ], and the spiral separation technique [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Research on prediction of coal water medium separation effect based on multi-models

Chen,

Wang,

Wang

et al. 2024

Heliyon

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Section: Introductionmentioning

confidence: 99%

Research on prediction of coal water medium separation effect based on multi-models

Chen,

Wang,

Wang

et al. 2024

Heliyon

View full text Add to dashboard Cite

“…Changing the amplitude and frequency of the jig, and comparing the energy, power and relative position of coal gangue particles to determine the best parameters, improves the separation effect. But at present, the research of coal gangue jig separation is mostly about the technological parameters [14,15] and mechanical structure [16]. There is little research on the properties of materials, and the jig has a poor effect on the separation of connected minerals with fine particle size [17].…”

Section: Introductionmentioning

confidence: 99%

Study on the Influence of Particle Size Distribution on the Separation of Pyrite from Coal Gangue by Jigging

Hou,

Xi,

Wang

et al. 2024

Coatings

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The presence of pyrite poses a significant impediment to the comprehensive utilization of coal gangue, which is a prevalent solid waste in industrial production. However, the current efficacy of jig separation for pyrite in fine-grade coal gangue remains unsatisfactory. To investigate the influence of particle size distribution on the jig separation of pyrite in fine-grade coal gangue, the raw material was crushed to less than 2 mm using a jaw crusher and subsequently sieved to obtain its particle size distribution curve. Upon fitting the curve, it was observed that it tends towards the Rosin-Rammler (RRSB) and Fuller distributions. Leveraging these two-parameter distribution curves, adjustments were made to determine the mass within each particle size range before conducting thorough mixing followed by jig separation. The results indicate that for fine-grade gangue particles smaller than 2 mm, the RRSB distribution with a uniformity coefficient of n = 0.85 exhibits the most effective separation, although it is comparable to the separation achieved using the size distribution of raw ore. On the other hand, employing the Fuller distribution with modulus of distribution q = 1.5 yields superior separation performance. In comparison to the raw ore, the concentrate shows an increase in sulfur (S) and iron (Fe) content by factors of 3.4 and 2.4, respectively. Furthermore, compared to the RRSB distribution, there is an increase in S and Fe content by 1.91% and 2.30%, respectively; the contents of S and Fe in tailings is 0.71% and 2.72%, which can be directly used as raw materials for coating materials. Therefore, for fine-grade coal gangue particles, jigging under the Fuller distribution demonstrates better effectiveness than under the RRSB distribution.

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Efficacy of Pilot Scale Batac Jig on LVC Coal Utilization for Coke Making

Cited by 2 publications

References 12 publications

Research on prediction of coal water medium separation effect based on multi-models

Research on prediction of coal water medium separation effect based on multi-models

Study on the Influence of Particle Size Distribution on the Separation of Pyrite from Coal Gangue by Jigging

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